Home / 71,116.25-98,139.83-39,284.47

Finding the Fourth Proportional to 71,116.25, 98,139.83 and 39,284.47

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Solution

The fourth proportional to 71,116.25, 98,139.83 and 39,284.47 is: 54,212.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,116.25 : 98,139.83 = 39,284.47 : x
  2. Step 2: Convert to fraction form
    71,116.25/98,139.83 = 39,284.47/x
  3. Step 3: Cross multiply
    71,116.25x = 98,139.83 × 39,284.47
  4. Step 4: Simplify right side
    71,116.25x = 3,855,370,765.67
  5. Step 5: Solve for x
    x = 3,855,370,765.67/71,116.25
  6. Step 6: Final answer
    x = 54,212.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.